APA (7th ed.) Citation

Ballantyne, R. M. Up in the Clouds: Balloon Voyages.

Chicago Style (17th ed.) Citation

Ballantyne, R. M. Up in the Clouds: Balloon Voyages.

MLA (9th ed.) Citation

Ballantyne, R. M. Up in the Clouds: Balloon Voyages.

Warning: These citations may not always be 100% accurate.